| File name: | Vigorf.A' in file 'old-uninstaller.exe' |
| Full analysis: | https://app.any.run/tasks/37570f33-8ca1-4e4a-8976-191e8ac84b3b |
| Verdict: | Malicious activity |
| Analysis date: | February 06, 2024, 14:26:24 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive |
| MD5: | 94D1FF54A60879F38946367A26EE1041 |
| SHA1: | 3A7EFE8FB1A4E001938615BE0087D6A32CCEE6A4 |
| SHA256: | 00A4CB4D212076616447FACCF1EA573553019BDD42099AEA013BF2144AAAA4E2 |
| SSDEEP: | 3072:9GZGETVluqnvT+ESYUTsPhRbEwZoIrlnMW8paqm+LjBr9FWwHRW6/:whpHviESYrwwZoIRMWmdmWtHHR |
MALICIOUS
Drops the executable file immediately after the start
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 532)
- Un_A.exe (PID: 752)
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 4092)
- Un_A.exe (PID: 2204)
SUSPICIOUS
Starts itself from another location
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 532)
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 4092)
Executable content was dropped or overwritten
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 532)
- Un_A.exe (PID: 752)
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 4092)
- Un_A.exe (PID: 2204)
Malware-specific behavior (creating "System.dll" in Temp)
- Un_A.exe (PID: 752)
- Un_A.exe (PID: 2204)
The process creates files with name similar to system file names
- Un_A.exe (PID: 752)
- Un_A.exe (PID: 2204)
INFO
Checks supported languages
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 532)
- Un_A.exe (PID: 752)
- Un_A.exe (PID: 2204)
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 4092)
Create files in a temporary directory
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 532)
- Un_A.exe (PID: 752)
- Un_A.exe (PID: 2204)
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 4092)
Reads the computer name
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 532)
- Un_A.exe (PID: 752)
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 4092)
- Un_A.exe (PID: 2204)
Manual execution by a user
- Vigorf.A' in file 'old-uninstaller.exe'.exe (PID: 4092)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (67.4) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.2) |
| .exe | | | Win32 Executable (generic) (9.7) |
| .exe | | | Generic Win/DOS Executable (4.3) |
| .exe | | | DOS Executable Generic (4.3) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2018:12:15 23:26:14+01:00 |
| ImageFileCharacteristics: | No relocs, Executable, No line numbers, No symbols, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 26624 |
| InitializedDataSize: | 473088 |
| UninitializedDataSize: | 16384 |
| EntryPoint: | 0x338f |
| OSVersion: | 4 |
| ImageVersion: | 6 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 6.38.0.0 |
| ProductVersionNumber: | 6.38.0.0 |
| FileFlagsMask: | 0x0000 |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Windows, Latin1 |
| CompanyName: | Signal Messenger, LLC |
| FileDescription: | Private messaging from your desktop |
| FileVersion: | 6.38.0 |
| LegalCopyright: | Copyright © 2023 Signal Messenger, LLC |
| ProductName: | Signal |
| ProductVersion: | 6.38.0 |
Total processes
40
Monitored processes
4
Malicious processes
1
Suspicious processes
3
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 532 | "C:\Users\admin\Desktop\Vigorf.A' in file 'old-uninstaller.exe'.exe" | C:\Users\admin\Desktop\Vigorf.A' in file 'old-uninstaller.exe'.exe | explorer.exe | ||||||||||||
User: admin Company: Signal Messenger, LLC Integrity Level: MEDIUM Description: Private messaging from your desktop Exit code: 0 Version: 6.38.0 Modules
| |||||||||||||||
| 752 | "C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Un_A.exe" _?=C:\Users\admin\Desktop\ | C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Un_A.exe | Vigorf.A' in file 'old-uninstaller.exe'.exe | ||||||||||||
User: admin Company: Signal Messenger, LLC Integrity Level: MEDIUM Description: Private messaging from your desktop Exit code: 2 Version: 6.38.0 Modules
| |||||||||||||||
| 2204 | "C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Un_A.exe" _?=C:\Users\admin\Desktop\ | C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Un_A.exe | Vigorf.A' in file 'old-uninstaller.exe'.exe | ||||||||||||
User: admin Company: Signal Messenger, LLC Integrity Level: MEDIUM Description: Private messaging from your desktop Exit code: 0 Version: 6.38.0 Modules
| |||||||||||||||
| 4092 | "C:\Users\admin\Desktop\Vigorf.A' in file 'old-uninstaller.exe'.exe" | C:\Users\admin\Desktop\Vigorf.A' in file 'old-uninstaller.exe'.exe | explorer.exe | ||||||||||||
User: admin Company: Signal Messenger, LLC Integrity Level: MEDIUM Description: Private messaging from your desktop Exit code: 0 Version: 6.38.0 Modules
| |||||||||||||||
Total events
1 439
Read events
1 439
Write events
0
Delete events
0
Modification events
Executable files
4
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4092 | Vigorf.A' in file 'old-uninstaller.exe'.exe | C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Un_A.exe | executable | |
MD5:94D1FF54A60879F38946367A26EE1041 | SHA256:00A4CB4D212076616447FACCF1EA573553019BDD42099AEA013BF2144AAAA4E2 | |||
| 2204 | Un_A.exe | C:\Users\admin\AppData\Local\Temp\nsa83AD.tmp\System.dll | executable | |
MD5:0D7AD4F45DC6F5AA87F606D0331C6901 | SHA256:3EB38AE99653A7DBC724132EE240F6E5C4AF4BFE7C01D31D23FAF373F9F2EACA | |||
| 752 | Un_A.exe | C:\Users\admin\AppData\Local\Temp\nsu3629.tmp\System.dll | executable | |
MD5:0D7AD4F45DC6F5AA87F606D0331C6901 | SHA256:3EB38AE99653A7DBC724132EE240F6E5C4AF4BFE7C01D31D23FAF373F9F2EACA | |||
| 532 | Vigorf.A' in file 'old-uninstaller.exe'.exe | C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Un_A.exe | executable | |
MD5:94D1FF54A60879F38946367A26EE1041 | SHA256:00A4CB4D212076616447FACCF1EA573553019BDD42099AEA013BF2144AAAA4E2 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |